Analysis Of Dose Effect Relationship(Environmental Biotechnology ) Questions and Answers

Question 1. Which of the following factors doesn’t influence the Dose response relationship?
  1.    Membrane permeability rate
  2.    Quantifying response
  3.    Exposure time
  4.    Exposure route
Explanation:-
Answer: Option A. -> Membrane permeability rate
Answer: (a).Membrane permeability rate
Question 2. Which of the following is important for the toxicant to cross several sub cellular structures?
  1.    Toxification
  2.    Sodium
  3.    Potassium
  4.    Biochemical degradation
Explanation:-
Answer: Option A. -> Toxification
Answer: (a).Toxification
Question 3. With respect to dose effect relationship, which of the following factors doesn’t influence the direct uptake of toxicants during bio-accumulation?
  1.    Membrane permeability rate
  2.    Elimination
  3.    Rate of active transport
  4.    Rate of active transport
Explanation:-
Answer: Option B. -> Elimination
Answer: (b).Elimination
Question 4. Bio-accumulation can occur through direct surface absorption from aqueous medium in Zooplanktons.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
Explanation:-
Answer: Option A. -> True
Answer: (a).True
Question 5. Size of organism is not related to bioaccumulation.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
Explanation:-
Answer: Option B. -> False
Answer: (b).False
Question 6. Bio concentration factor is the concentration of a pollutant in an organism compared to that present in the environment.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
Explanation:-
Answer: Option A. -> True
Answer: (a).True
Question 7. The persistence of the organic compounds depends on the presence of any metal.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
Explanation:-
Answer: Option B. -> False
Answer: (b).False
Question 8. Which of the following present can be degraded by aerobic and anaerobic processes?
  1.    Hydrocarbons
  2.    Calcium
  3.    Magnesium
  4.    Nitrogen
Explanation:-
Answer: Option A. -> Hydrocarbons
Answer: (a).Hydrocarbons
Question 9. Which of the following is faster process for degradation of xenobiotics?
  1.    Anaerobic degradation
  2.    Aerobic degradation
  3.    Reductive dihydroxylation
  4.    Hydration
Explanation:-
Answer: Option B. -> Aerobic degradation
Answer: (b).Aerobic degradation
Question 10. Non-halogen based xenobiotics are converted into which of the following substance?
  1.    Catechol
  2.    Sulphur
  3.    Acrylamide
  4.    Acid
Explanation:-
Answer: Option A. -> Catechol
Answer: (a).Catechol
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